Added OpenStack options to brooklyn.properties
Update documentation to match the code

Instead of --app <....> the argument --cluster can be used.
PortForwardManager persistence: call entity.onChanged
stream map converter: avoid tag with numeric first char
Adds PortForwardManagerRebindTest
create a brooklyn-persistence-safe pattern for PortForwardManager.
NB this will break callers who attempt to create instances. new patterns should be followed to ensure these are safe for persistence.
add equals and tostring for PortMapping
support injecting the owning entity
fix the orig uni ttest
Updated PortForwardManager Javadoc
Added fromAttributeOnEntity method
Merge pull request #1459 from alessiogambi/master

Added OpenStack options to brooklyn.properties
Merge pull request #1460 from neykov/update-docs

Update documentation to match the code
Merge pull request #1461 from grkvlt/fix-subnet-tier-persistence

Fix subnet tier persistence